Pearce-Crump's Dirichlet reciprocal derivative moment conjecture
Let be a primitive Dirichlet character modulo , and let be its Dirichlet -function, with non-trivial zeros . Assume the Generalised Riemann Hypothesis for and that all its non-trivial zeros are simple. Dirichlet reciprocal derivative moment conjecture. As ,
and this asymptotic is expected to hold uniformly for , for any fixed . Here is the arithmetic factor defined in the paper. The paper proves a conductor-uniform lower bound capturing a proportion of the conjectured main term, but the full asymptotic is open.
References
Primary source
Andrew Pearce-Crump, “Negative discrete second moments of Dirichlet L-functions”, arXiv:2606.25094 (2026).
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